난 당신의

I, your...

→ 나+는
phrase Rare #21,411
I, your... This is not a fixed phrase by itself. 난 is a contraction of 나는, meaning “I,” and 당신의 means “your”; the rest of the sentence usually follows. 당신 is relatively formal and can sound distant or confrontational depending on context.
KO: 난 당신의 친구가 아니에요.
EN: I'm not your friend.

난 당신의 목소리

I am your voice.

— 카쉬미르의 소녀 (2015)

당신은 피고인 이고 난 당신의 진술을 받을 거 야

You’re the defendant, and I’m going to take your statement.

— 엘 시크레토: 비밀의 눈동자 (2009)